40 CANARIAN COLEOPTEEA. 



dependently, therefore, of this primary distinction (which of itself 

 would be sufficient to separate them), I may just add that the C. 

 spretus may be knoAVTi from its ally by (on the average) its slightly 

 larger bulk and rather darker hue ; by its prothorax being perhaps 

 a little less rounded at the sides, and its elytra a Httle more so ; and 

 by the latter being just perceptibly more convex and opake, with 

 their basal line somewhat straighter. 



AVhilst the C. harhatus is apparently confined to Grand Canary, 

 the present si)ecies has been observed only in Hicrro, — where several 

 examples of it were captured by Mr. Gray and myself, during our 

 visit to that island, in February 1858. 



Genus 22. ANCHOMENUS. 

 Bonelli, Obse)-v. Ent. i. tab. syu. (1809). 



66. Anchomenus Nichollsii, n. sp. 



A. capite prothoraceque nigro-piccis, nitidis, hoc angusto, valde cor- 

 date, ad latera baud exijlanato, postice leviter punctate ; elytris 

 ovahbus, obscurioribus sed in limbo brunneis, subopacis, leviter 

 striatis, interstitio tertio punctulis 2 (rarius 3) notato, punctis in 

 serie marginah maximis, linea basaH (inter humeros et scutellum) 

 elevata, curvata ; palpis, autennis pedibusque elongatis, rufo-tes- 

 taceis. — Long. coqi. lin. 4. 



Habitat in elevatis Teneriffae et Gomerae, tempore vernali a.d. 1862 

 a DD. Crotch et NichoUs repertus, cujus in honorem nomen triviale 

 proposui. 



The opake and rather apicaUy-shortened elytra of the present 

 insect and the following one give them such a totally different ap- 

 pearance from any Anchomenus with which I am acquainted that I 

 had at first thought they must be generically distinct ; nevertheless 

 the details of their mouth show no modifications of sufficient import- 

 ance to warrant their separation, their simple claws and the entire 

 tooth of their mentum assigning them to that group. Their palpi, 

 as well as their paraglossae, are certainly longer than is the ease in 

 the ordinary Ancliomeni, and their wings are obsolete ; but such 

 characters cannot be of more than specific signification, being merely 

 of degree and not of kind. They have something in common with 

 Dyscohis, of Dejean, the shghtly bilobed penultimate articulation of 

 aU their tarsi so far approacMng the structure which obtains (more 

 or less) in that genus that Dr. Schaum is of opinion that it will 

 have to be remerged ultimately into Anchomemis. 



The detection of the A. Nichollsii is due to the researches of Dr. 



